JPS6310622Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the structure of a battery lead plate that has a battery as a driving source and provides conduction from the battery.

Conventionally, in a portable watch using a button type battery, a battery lead plate is provided on the top surface of the battery to ensure conduction between the battery anode. This method had the advantage that the battery was securely fixed to the movement alone, but had the disadvantage that the movement became thicker due to the thickness of the battery lead plate. However, as watches have become thinner, it has become difficult to adopt the conventional structure in which a battery lead plate is placed on the top of the movement. For this reason, many watches have come to have a structure in which a battery lead plate is placed on the side of the battery and a watch back cover is used to prevent the battery from popping out. However, with the method of placing a battery lead plate on the side of the battery to conduct the anode, the external shape and bending of the battery lead plate are complicated, and pins are provided to prevent rotation, and the battery lead is connected using the side of the main plate. Since the plate was fixed, there was a drawback that the number of man-hours required for processing the pins, drilling holes in the base plate, mounting the plate, and assembling the pins increased. There was also a method of fixing the battery lead plate using the magnetic member by providing a notch in the magnetic member that constitutes the drive motor, but the motor performance was affected by the stress strain caused by the notch and the battery lead plate. There were shortcomings that affected the Furthermore, the conventional battery lead plate had many parts exposed on the surface of the movement, and the battery lead plate spoiled the appearance of the movement. Furthermore, with the recent diversification of watch models, the same movement has come to cover everything from small to large models. In large models, the gap between the case and the movement was used to extend the battery life by using a large diameter battery, but by using two or more types of batteries, the shape of parts such as battery lead plates changed The disadvantage was that the number of parts increased.

The present invention eliminates such drawbacks, and its purpose is to securely fix the battery lead plate of a thin watch.
This aims to reduce the price of the movement.

In the battery lead plate 1 of the electronic watch according to the present invention, the battery lead plate 1 of the electronic watch contacts the battery 2 held on the base plate 8, and the battery lead plate 1 engages with a pin 4 set up on the base plate 8. Engagement part 1
c, a spring portion 1a extending in one direction from the engaging portion 1c and contacting the side surface of the battery 2, and a bending portion 1b extending in the other direction from the engaging portion 1c; The bending portion 1b is characterized in that it is selectively engaged with at least two notches A and B provided in the receiving member 3 disposed on the base plate 8 according to the diameter of the battery. .

The present invention will be explained in detail below with reference to the drawings.

FIGS. 1 and 2 are a plan view and a sectional view showing an embodiment of the present invention. In FIG. 1, the engaging part 1c of the battery lead plate 1 is fitted into the pin 4 provided near the battery 2, and the spring part 1a of the battery lead plate 1 comes into contact with the side surface of the battery 2, which serves as a receiving member. A bending portion 1b of the battery lead plate is formed in one of the two notches A and B provided in the center wheel bridge 3 according to the battery diameter.
is locked. When the battery 2 is installed, the rotation of the battery lead plate 1 is blocked by the battery-side side of the notch in the center wheel bridge 3, and when the battery 2 is not installed, the notch in the center wheel bridge 3 prevents rotation of the battery lead plate 1. Rotation of the battery lead plate 1 is prevented by the side surface opposite to the battery side.
If the watch case is small and there is little clearance between it and the outside of the movement, a battery with a small outer diameter can be used by engaging the notch A of the center wheel bridge 3 with the bent part 1b of the battery lead plate 1. If the watch case is large and there is a lot of clearance between the outer diameter of the movement and a battery with a larger outer diameter can be used, the notch B of the center wheel bridge 3 and the bent portion 1b of the battery lead plate 1 should be connected. By matching, a battery with a larger outer diameter can be used than when using the notch part A.

FIG. 2 is a cross-sectional view of FIG. 1, in which the catch 9 is assembled on the base plate 8 guided by the pin 4 set on the base plate 8, and further includes the battery lead plate 1 and the circuit board 1.
0. The circuit receiver 5 is guided by the pin 4 and assembled, and is tightened with the screw 7. The spring part 1a extending in one direction from the engaging part 1c of the battery lead plate 1 contacts the side surface of the battery 2, and the bending part 1b extending in the other direction from the engaging part 1c is a notch part of the center wheel bridge 3. Engaged with A or B. A wheel train bridge 6 is incorporated on the center wheel bridge 3. Since the battery lead plate 1 uses pins 4 that are common to the circuit holder 5 and the circuit board 10, there is no need for pins or base plate sills for fixing the battery lead plate 1, so it is easy to process and assemble the pins and the base plate. The number of steps is reduced, making it possible to reduce movement production costs.

As described above, the battery lead plate according to the present invention is
an engaging part that engages with a pin standing on a base plate; a spring part that extends from the engaging part in one direction and contacts the side surface of the battery; and a spring part that extends from the engaging part in the other direction and is provided on the receiving member. The battery is provided with a bending forming part that is locked in the two notches, and the bending forming part is selectively locked in either of the two notches depending on the diameter of the battery to be assembled. By bringing the spring part of the battery lead plate into contact with the side of the battery, it is possible to use two or more types of batteries using the same parts, and when the battery is assembled, the notch allows the battery to Rotation of the lead plate is prevented, and electrical continuity with the battery can be ensured by bringing the spring portion of the battery lead plate into elastic contact with the side surface of the battery. In addition, it is possible to reduce the number of processing and assembly steps for pins and base plates, to prevent confusion between parts by using batteries with different outer diameters while using the same parts, and to reduce costs by using the same parts.

[Brief explanation of the drawing]

Figure 1 is a plan view showing one embodiment of the present invention;
The figure is a sectional view thereof. 1...Battery lead plate, 1a...Spring part, 1b...
...Bending forming part, 1c...Engaging part, 2...Battery, 3
...Second wheel holder, 4...Pin, 5...Circuit holder, 7...
...Screw, 8...Main plate, 9...Catch, 10...Circuit board, A, B...Notch provided in center wheel bridge.

Claims (1)

[Scope of utility model registration request] In the battery lead plate 1 of an electronic watch that contacts the battery 2 held on the base plate 8, the battery lead plate 1
These include an engaging portion 1c that engages with a pin 4 set up on the base plate 8, a spring portion 1a that extends in one direction from the engaging portion 1c and comes into contact with the side surface of the battery 2, and the engaging portion 1c. The bending forming portion 1b is extended toward the other side.
The bending portion 1b is selectively engaged with at least two notches A and B provided in the receiving member 3 disposed on the base plate 8 according to the diameter of the battery. A battery lead plate for an electronic watch, which is characterized by: